i went out to go ride a bit today and when i gave it gas it would miss and almost die whats goin on here is it runnin rich?? the plug was dark also but not super dark just darker than usuall and it was a much warmer day than i usually ride in?? i thibk its runnin rich... what do u guys think??

 

Actually it sounds lean to me.
Try pulling on the choke, when its acting up...this will richen the mixture, and if it gets worse...it was too rich.
If it gets better...it was too lean.

 

how could it be lean when its a black plug??

 

Unless a plug chop is done properly, the color of the plug is meaningless. There are 4 circuits in the carb...any of which can be independantly rich or lean, from the other three circuits. You could have a very rich main or mid range, and be very lean in the idle circuit.
The best way to jet is by drivability symptoms...if you have no problems...its jetted correctly. A miss and stumbling and dieing, are signs of a lean circuit.
At what throttle opening was the trouble? That will tell you which circuit has the problem.
With all of the additives in todays gasoline, its very difficult , even for experienced riders to read plugs, the signs are very subtle. The procedure has to be followed exactly, for the plug chop to be of any meaning.
Try the choke, as you get to the part where it misses, ill bet it clears up ...i still think its lean.

 

yea but i mean it ran fine in cooler weather then today it was warmer like 20 degrees warmer and it was runnin bad so i think its rich and the plug is dark and its cuttin like its to fat so i dunno ill just bump it down 2 sizes on the main i think

 

anyone else??